315891289560 has 128 divisors (see below), whose sum is σ = 1181515507200. Its totient is φ = 65639746560.

The previous prime is 315891289529. The next prime is 315891289561. The reversal of 315891289560 is 65982198513.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 315891289560.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315891289561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17084445 + ... + 17102924.

It is an arithmetic number, because the mean of its divisors is an integer number (9230589900).

Almost surely, 2^315891289560 is an apocalyptic number.

315891289560 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

315891289560 is an abundant number, since it is smaller than the sum of its proper divisors (865624217640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

315891289560 is a wasteful number, since it uses less digits than its factorization.

315891289560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34187401 (or 34187397 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 57.

The spelling of 315891289560 in words is "three hundred fifteen billion, eight hundred ninety-one million, two hundred eighty-nine thousand, five hundred sixty".